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blackknight
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4339 Posts

Posted - 11/13/2011 :  07:41:09  ·|­û¸ê®Æ  Click to see blackknight's MSN Messenger address Send blackknight a Private Message  ¤Þ¨¥¦^ÂÐ

¨ä¹ê¿W¥ß¸¹ªº°ÝÃD¤£¬O¦hÅé

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³oÅý¦o¦b¤ô­±¤W§ó®e©ö"·Æ°Ê"
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¦hÅé²î·|¦³®ö©Y¹ï²îÅ馳§«Ãª¶i¦Ó³y¦¨¦b´c¦H®ü¶H¤U¦hÅé²îªº¯è¦æ®Ä²v§C¤U

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¦ý¬O¿W¥ß¸¹¥Îªº¬O¶É¨¤¦¡²îçF¤~Åý³o°ÝÃD³Q¥YÅã¥X


¦b§O³B¬Ý¨ì³o¼Ëªºµû»y¡A¦ý¬Ý¤£¤ÓÀ´¸Ó¤å¤¤ªº"·Æ°Ê"¬O«ü¤°»ò²{¶H?


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©M¤Ï®£¬¡°Êªº¶i¦æ!!Åý§Ú­Ì¤@°_©I¤f¸¹!!¥´­Ë¼É¤OÅK®±¤k¥D¨¤!!®õ²ïÄ¥ªø¬O³ÌµÞªº!!
¤µ¤Ñ¤ß±¡¤£¿ù~~~´N¨ì³o§a!!

rockitten
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Australia
8191 Posts

Posted - 11/13/2011 :  11:09:54  ·|­û¸ê®Æ Send rockitten a Private Message  ¤Þ¨¥¦^ÂÐ
quote:
Originally posted by blackknight


¨ä¹ê¿W¥ß¸¹ªº°ÝÃD¤£¬O¦hÅé

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¦Ó¤£¬O±×¨¤¦¡

³oÅý¦o¦b¤ô­±¤W§ó®e©ö"·Æ°Ê"
¦ý¬Oí©w©Ê¨S¦³°ÝÃD

¦]¬°¦hÅé²î´N¬O§Q¥Î¦h¿´­«¤ß©M¤j­«¤ß­±¿n¨ÓÀ³¥I¦b§C¦Y¤ô:§C¤ôªý¤U¯à­Ý¨ã­«¤ßí©w©M¤ô½u¤W¦w©w

¤ñ¸û³Â·Ðªº¬O®ü¶H¤Ó´c¦H¤U
¦hÅé²î·|¦³®ö©Y¹ï²îÅ馳§«Ãª¶i¦Ó³y¦¨¦b´c¦H®ü¶H¤U¦hÅé²îªº¯è¦æ®Ä²v§C¤U

¸Ñ¨M¤èªk¨ä¹ê´N¬O½ÆÅé²ìªº¶}¤f¤£À³¦b¤ô½u¤W
¦Ü¤ÖÀ³¸Ó¦b¶Kªñ¤ô½u


¦ý¬O¿W¥ß¸¹¥Îªº¬O¶É¨¤¦¡²îçF¤~Åý³o°ÝÃD³Q¥YÅã¥X


¦b§O³B¬Ý¨ì³o¼Ëªºµû»y¡A¦ý¬Ý¤£¤ÓÀ´¸Ó¤å¤¤ªº"·Æ°Ê"¬O«ü¤°»ò²{¶H?


one of the trick for catamaran to reduce drag is by reducing the cross-section area under water (§C¦Y¤ô) and so they are similar to sliding on the water surface

¤p¿ß¤£·|§@¼Ò«¬¡A¤p¿ß¥u·Rª±¼Ò«¬¡F¬Ý¦ü¤p¿ßª±¼Ò«¬¡A¨ä¹ê¼Ò«¬ª±¤p¿ß¡G
A B ¸É¤g¥Õ½¦±ø¡A¾ð¯×§ï®M»k¨è¤ù¡F¥W½u¥Y½u¥W¥Y½u¡A°®¿i¤ô¿i¾V¤M¿i¡F
¤ô©Êªo©Ê®ø¥úº£¡A°®±½¤â±½¼Qºj±½¡F¼Ò«¬¤@²°¤T¦Ê´X¡A¹s¥ó¤@°ï¤T¤d´X¡F
¦h¶R¦h§@¶i¨B¦h¡A¶R¤F¤£§@¤f¤ô¦h¡Fªá¿ú¯Ó®É¶Ëºë¯«¡A¤p¿ß¬O°¦±Ñ®aØp¡C
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blackknight
¸ô¤H¥Ò¤A¤þ

4339 Posts

Posted - 11/14/2011 :  16:25:11  ·|­û¸ê®Æ  Click to see blackknight's MSN Messenger address Send blackknight a Private Message  ¤Þ¨¥¦^ÂÐ
¤£¹L¤å¤¤»¡ªº·Æ°Ê¦ü¥G¬O©M¶É¨¤¦¡²îçF¬ÛÃöªº²{¶H¡A¤p¿ß¥S»¡ªº«h¬OÂùÅé²îªº§Cªý­ì¦]

=========================================================
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°OªÌ¡G½Ð°ÝÃö©ó©x¤è©Ó»{®õ²ïÄ¥ªø¬O³ÌµÞªº§A¦³¤°»ò¬Ýªk?
µo¨¥¤H¡G«D±`¦n!!³o¬O²Å¦X¥þÅé±K»È¾Ô¶¤¶¤­ûªº³Ì¤j¦@ÃÑ¡A¦³§U©ó³¡¶¤¤h®ðªº´£¤É
©M¤Ï®£¬¡°Êªº¶i¦æ!!Åý§Ú­Ì¤@°_©I¤f¸¹!!¥´­Ë¼É¤OÅK®±¤k¥D¨¤!!®õ²ïÄ¥ªø¬O³ÌµÞªº!!
¤µ¤Ñ¤ß±¡¤£¿ù~~~´N¨ì³o§a!!
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dasha
ª©¥D

41804 Posts

Posted - 11/15/2011 :  10:08:36  ·|­û¸ê®Æ Send dasha a Private Message  ¤Þ¨¥¦^ÂÐ
quote:
Originally posted by blackknight



¤ñ¸û³Â·Ðªº¬O®ü¶H¤Ó´c¦H¤U
¦hÅé²î·|¦³®ö©Y¹ï²îÅ馳§«Ãª¶i¦Ó³y¦¨¦b´c¦H®ü¶H¤U¦hÅé²îªº¯è¦æ®Ä²v§C¤U

¸Ñ¨M¤èªk¨ä¹ê´N¬O½ÆÅé²ìªº¶}¤f¤£À³¦b¤ô½u¤W
¦Ü¤ÖÀ³¸Ó¦b¶Kªñ¤ô½u


¦ý¬O¿W¥ß¸¹¥Îªº¬O¶É¨¤¦¡²îçF¤~Åý³o°ÝÃD³Q¥YÅã¥X




¦Ñ¹ê»¡,·Q¤F¨â¤Ñ,ÁÙ¬O¤£À´³o¤@¬q±q"¸Ñ¨M¤èªk......"¶}©lÁ¿ªº¬O¬Æ.
¨ººØ²î­º¦b¤j®ö®É¦³®e©ö¤U´¡¦Ó¤£¬O¤W´éªº°ÝÃD.
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sungf29
¸ô¤H¥Ò¤A¤þ

898 Posts

Posted - 11/17/2011 :  16:21:06  ·|­û¸ê®Æ Send sungf29 a Private Message  ¤Þ¨¥¦^ÂÐ
http://www.youtube.com/watch?v=s-vgFMCmHPo&feature=related

®ü®l¸¹¥x¤¤¸Õ¯è¶i´ä180«×½ÕÀY¡]¬ù3¤ÀÄÁ¤º¡^

¿D¬wÂùÅé©Î3Åé²î¬Æ¦Ü¸U¾·¯Å ¦ü¥G«Ü±j½Õ³oºØ­ì¦a180«×°jÂà ¾a´ä¤è«K©Ê

¦L¶H¤¤¦¨¥\¯Å¦³Ãþ¦ü¤§»²§U±À¶i¤è«K¾a´ä¾Þ§@

¦Ó±d©w¯Å¨Ì¶Àªe´çÄ¥ªø ¯S§O±j½Õ¤£¾a¤Þ¤ô¤H¦Û¦æ¾ÞÄ¥¾a©¤ ¦ü¥Gªí¥Ü¾a´ä¾ÞÄ¥¨S¦³Ãþ¦üªº»²§U±À¶i

¦Ó©Ò¦³­x¥ÎÄ¥¸¥¥u¦³±Æ¹pÄ¥¯S§O±j½Õ¥i¥H­ì¦a°jÂà

³oºØ­ì¦a¦^Âà¹ï­xÄ¥¦³¨S¦³¯q³B.­·®öµ¥¯Å¦³¨S¦³­­¨î¡H
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rockitten
§Ú¬O¦Ñ³¾

Australia
8191 Posts

Posted - 11/17/2011 :  18:25:24  ·|­û¸ê®Æ Send rockitten a Private Message  ¤Þ¨¥¦^ÂÐ
quote:
Originally posted by sungf29

http://www.youtube.com/watch?v=s-vgFMCmHPo&feature=related

®ü®l¸¹¥x¤¤¸Õ¯è¶i´ä180«×½ÕÀY¡]¬ù3¤ÀÄÁ¤º¡^

¿D¬wÂùÅé©Î3Åé²î¬Æ¦Ü¸U¾·¯Å ¦ü¥G«Ü±j½Õ³oºØ­ì¦a180«×°jÂà ¾a´ä¤è«K©Ê


those from AUSTAL and INCAT (that ®ü®l¸¹) use water jet for propulsion so the "thruster" can work like "vector thrust" to improve maneuverability at swallow water or confine space, which is useful for ferries since they have to dock and make U turn quick without tugs helping.

¤p¿ß¤£·|§@¼Ò«¬¡A¤p¿ß¥u·Rª±¼Ò«¬¡F¬Ý¦ü¤p¿ßª±¼Ò«¬¡A¨ä¹ê¼Ò«¬ª±¤p¿ß¡G
A B ¸É¤g¥Õ½¦±ø¡A¾ð¯×§ï®M»k¨è¤ù¡F¥W½u¥Y½u¥W¥Y½u¡A°®¿i¤ô¿i¾V¤M¿i¡F
¤ô©Êªo©Ê®ø¥úº£¡A°®±½¤â±½¼Qºj±½¡F¼Ò«¬¤@²°¤T¦Ê´X¡A¹s¥ó¤@°ï¤T¤d´X¡F
¦h¶R¦h§@¶i¨B¦h¡A¶R¤F¤£§@¤f¤ô¦h¡Fªá¿ú¯Ó®É¶Ëºë¯«¡A¤p¿ß¬O°¦±Ñ®aØp¡C
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dasha
ª©¥D

41804 Posts

Posted - 11/18/2011 :  15:50:54  ·|­û¸ê®Æ Send dasha a Private Message  ¤Þ¨¥¦^ÂÐ
¶Ç²Îªº²î¾a¦|»P²ë±±¨î¯è¦V,³o¦~ÀY«Ü¤Ö¤H¥Î¥i°Ê¦|,¨º´N¬O¾a²ë.ÁöµM²ë¤p¤pªº¤@¶ô«Ü¬ÙªÅ¶¡,¦ý§C³t®Ä²v¤£¦n,¤@©w­n¦³¤@­Óµ{«×¥H¤Wªº«e¶i»P«á°h³t«×¤~¦³®ÄªG,³o¨Ï±o¥u¾a²ëªº²î¤£¯à­ì¦aÂàÅs,¤j®ü¯è¦æÁÙ¦n,¾a´ä¾a©¤´N­n¨ä¥L³]³Æ»²§U¤~¦æ.
¶Ç²Î³]­pªº²î·Q­n­ì¦aÂàÅs,¨º´N¬O­n¦V¶q±À¶i¸Ë¸m,³o©ÎªÌ¬O¥~¥[±À¶iÅn(Åé¿n¤p©ö·l·´),©ÎªÌ¬O²î¨­¥[¤W°¼¦V±À¤O¸Ë¸m(Åé¿n¤j¦ý³£¦b²î¨­¤º¦n«O¾iºûÅ@),¨S¦³¯S®í»Ý¨D³oºØªF¦è¨S¥Î.²î¨­«Ü¼eªºÂùÅé²î¤TÅé²î,¥u­n±À¶i¸Ë¸m¬O¦b¥~°¼²îÅé,¨º´N¦³¿ìªk¾a±À¤O®t¬Æ¦Ü¬O§ïÅܱÀ¤O¤è¦V,¶i¦æ¤p¥b®|¬Æ¦Ü­ì¦a°j±Û.
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